1
IIT-JEE 2011 Paper 1 Offline
MCQ (More than One Correct Answer)
+2
-0.5
The correct statement(s) pertaining to the adsorption of a gas on a solid surface is (are)
A
Adsorption is always exothermic
B
Physisorption may transform into chemisorption at high temperature
C
Physisorption increases with increasing temperature but chemisorption decreases with increasing temperature
D
Chemisorption is more exothermic than physisorption, however it is very slow due to higher energy of activation
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